“Fingerprint” Strategy to Improve IoT Chip Security

Fingerprint sensors have managed to replace PIN-based and password authentication for a long time now. The fingerprint strategy is widely used in smartphones, laptops and even payment terminals.

At a time when IOT security has become so critical, the fingerprint technology is ideal for enhancing chip security. Recently, in order to avoid the occurrence of device spoofing, engineers have developed a “fingerprinting” security scheme for IoT chips. This allows chips with matching circuitry to provide identical results when fed with the same input. However, it is possible for mild variations to occur as a result of materials being incorporated during fabrication. The variations cause signal changes or abrupt glitches.

“Fingerprinting” is done with the use of an embedded logical circuit in the chip to count the glitches. The “Fingerprint” strategy incorporates distributed sensors in or at the IoT. It offers data analytics and machine learning as well as endpoint web-based software to manage, monitor, record and remediate. The distributed structure allows simultaneous and consistent monitoring of several million devices. It is possible to embed the fingerprint strategy into the IoT with the support of ARM CPU. This way any deviation from the consented execution can be detected.